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Behavioral

6 months ago

What is a difficult piece of feedback that you have received? When did you receive it and how did you handle it?

Data ScientistFull Stack Software EngineerFrontend EngineerProgram Manager

eToro

Bol.com

Staples

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6 months ago

Coding

6 months ago

Walk me through the process of getting the confidence intervals around a mean in Python?

Data Scientist

eToro

Splunk

Google

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6 months ago

SQL

6 months ago

What functions do nested SELECT statements and WITH serve in the structure of SQL queries?

Data Scientist

eToro

GoDaddy

Eventbrite

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6 months ago

ML Knowledge

6 months ago

What does an ROC curve tell you about a model’s performance? What distinguishes the model performance between bagging and boosting?

Data ScientistMachine Learning Engineer

eToro

Zillow

Wish

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6 months ago

Statistics

7 months ago

What are some common methods for detecting and dealing with multicollinearity?

Data Scientist

eToro

Stitch Fix

NetEase

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7 months ago

SQL

7 months ago

Given a set of (date, duration) tuples, how would you filter by a specific date range and then compute the average duration and rolling sum for each date within that range?

Data Scientist

eToro

Samsara

GitLab

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7 months ago

ML Knowledge

7 months ago

How does one conceive and construct a minimum height tree in a graph?

Data Scientist

eToro

Nubank

Hitachi

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7 months ago

ML Knowledge

7 months ago

Regarding neural networks, do vanishing gradients primarily impact the layers closer to the input or to the output?

Data Scientist

eToro

VeriSign

Viber

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7 months ago

ML Knowledge

7 months ago

What is your strategy for picking the best number of clusters for the K-means algorithm.

Data Scientist

eToro

Grammarly

Ola

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7 months ago

SQL

7 months ago

How do you locate the top 5 most frequently sold items from a list of order histories?

Data Scientist

eToro

Rippling

GitLab

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7 months ago

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^*All interview questions are submitted by recent eToro Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at eToro.

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